The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
Dec. 18, 2009
Yasuhiro Suto, Osaka, JP;
Tomohiko Okada, Osaka, JP;
Shohichi Fukutome, Osaka, JP;
Hisashi Yamanaka, Osaka, JP;
Kenji Nakanishi, Osaka, JP;
Yoshihisa Yamada, Osaka, JP;
Mitsuharu Yoshimoto, Osaka, JP;
Eiji Kurimoto, Osaka, JP;
Keiji Sakai, Osaka, JP;
Yasuhiro Suto, Osaka, JP;
Tomohiko Okada, Osaka, JP;
Shohichi Fukutome, Osaka, JP;
Hisashi Yamanaka, Osaka, JP;
Kenji Nakanishi, Osaka, JP;
Yoshihisa Yamada, Osaka, JP;
Mitsuharu Yoshimoto, Osaka, JP;
Eiji Kurimoto, Osaka, JP;
Keiji Sakai, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a light source unit () serving as an embodiment of an illuminating apparatus, when P is a light-emitting element pitch [mm], and H is an optical axis distance [mm] between light-emitting elements () and an original (G), and when, in an illuminance cycle (T) representing repetition of bright and dark areas in a main scanning direction (X) on a light-irradiated face (Gs) of the original (G) caused by the light-emitting elements (), the light-emitting element pitch (P) and the optical axis distance (H) are set such that unevenness [%] (M) (=(LL)/L%]) obtained by dividing a value obtained by subtracting a minimum illuminance value (L) from a maximum illuminance value (L) by an average illuminance value (L) and an inter-unevenness distance [mm] (N) which is a half cycle of the illuminance cycle (T) satisfy the relation M≦N/2−5.5, and more preferably, M≦N/2−7.5.